[master] 6fdc89c1f Finish the release notes about JSON support in the CLI.

[Geoff Simmons]

commit 6fdc89c1fdd12bb83fadd8412faa1d7703761e36
Author: Geoff Simmons <geoff at uplex.de>
Date:   Thu Sep 13 10:40:20 2018 +0200

    Finish the release notes about JSON support in the CLI.

diff --git a/doc/sphinx/whats-new/upgrading-6.1.rst b/doc/sphinx/whats-new/upgrading-6.1.rst
index 8adba7689..2a33f67e0 100644
--- a/doc/sphinx/whats-new/upgrading-6.1.rst
+++ b/doc/sphinx/whats-new/upgrading-6.1.rst
@@ -221,10 +221,9 @@ Other changes
 
     * ``help -j``
 
-    * **XXX...**
-
-    A JSON response in the CLI always includes a timestamp (epoch time in
-    seconds with millisecond precision).
+    A JSON response in the CLI always includes a timestamp (epoch time
+    in seconds with millisecond precision), indicating the time at
+    which the reponse was generated.
 
   * The ``backend.list`` command now lists both directors and
     backends, with their health status. The command now has a ``-v``